Philips Semiconductors
Monostable/astable multivibrator
Product specification
HEF4047B
MSI
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL MIN. TYP. MAX.
TYPICAL EXTRAPOLATION
FORMULA
Propagation delays
ASTABLE, ASTABLE → OSC. OUTPUT
HIGH to LOW
LOW to HIGH
ASTABLE, ASTABLE → O, O
HIGH to LOW
LOW to HIGH
+/− TRIGGER → O, O
HIGH to LOW
LOW to HIGH
+ TRIGGER, RETRIGGER → O
HIGH to LOW
+ TRIGGER, RETRIGGER → O
LOW to HIGH
MR → O
HIGH to LOW
MR → O
LOW to HIGH
Output transition times
HIGH to LOW
LOW to HIGH
5
10 tPHL
15
5
10 tPLH
15
5
10 tPHL
15
5
10 tPLH
15
5
10 tPHL
15
5
10 tPLH
15
5
10 tPHL
15
5
10 tPLH
15
5
10 tPHL
15
5
10 tPLH
15
5
10 tTHL
15
5
10 tTLH
15
95 190 68 ns + (0,55 ns/pF) CL
45 90 43 ns + (0,23 ns/pF) CL
30 60 22 ns + (0,16 ns/pF) CL
85 170 58 ns + (0,55 ns/pF) CL
40 80 29 ns + (0,23 ns/pF) CL
30 60 22 ns + (0,16 ns/pF) CL
150 300 123 ns + (0,55 ns/pF) CL
65 130 54 ns + (0,23 ns/pF) CL
50 100 42 ns + (0,16 ns/pF) CL
130 260 103 ns + (0,55 ns/pF) CL
60 120 49 ns + (0,23 ns/pF) CL
45 90 37 ns + (0,16 ns/pF) CL
160 320 133 ns + (0,55 ns/pF) CL
65 130 54 ns + (0,23 ns/pF) CL
50 100 42 ns + (0,16 ns/pF) CL
155 310 128 ns + (0,55 ns/pF) CL
65 130 54 ns + (0,23 ns/pF) CL
50 100 42 ns + (0,16 ns/pF) CL
65 130 38 ns + (0,55 ns/pF) CL
30 60 19 ns + (0,23 ns/pF) CL
25 50 17 ns + (0,16 ns/pF) CL
95 190 68 ns + (0,55 ns/pF) CL
40 80 29 ns + (0,23 ns/pF) CL
30 60 22 ns + (0,16 ns/pF) CL
100 200 83 ns + (0,55 ns/pF) CL
45 90 34 ns + (0,23 ns/pF) CL
35 70 27 ns + (0,16 ns/pF) CL
100 200 83 ns + (0,55 ns/pF) CL
45 90 34 ns + (0,23 ns/pF) CL
35 70 27 ns + (0,16 ns/pF) CL
60 120 10 ns + (1,0 ns/pF) CL
30 60 9 ns + (0,42 ns/pF) CL
20 40 6 ns + (0,28 ns/pF) CL
60 120 10 ns + (1,0 ns/pF) CL
30 60 9 ns + (0,42 ns/pF) CL
20 40 6 ns + (0,28 ns/pF) CL
January 1995
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